634 
Report on Cream-separators and 
Fig. 12.- 
-PliiUijis's Loci- jaw 
Tile. 
cially to prevent snow and rain from drifting through roofs ; they 
are manufactured by power, which renders them less porous 
than the ordinary hand - made 
tile : they are so shaped that 
every individual tile dovetails 
into its neighbour and the joists 
of the roof at the same time, and 
is gripped by four fellow-tiles, 
thus rendering it less liable 
to be displaced by gales. If 
by any accident a tile becomes 
broken it is held in position, 
whilst a whole one can be sub- 
stituted without much displace- 
ment of the roof The lock on 
these tiles is ingenious, and 
forms a groove and tenon joint. 
They are ornamental in appear- 
ance, and low in price, render- 
ing them adaptable for agri- 
cultural buildings or residences. 
Messrs. H. J. and C. Major, of Bridgwater, also have brought 
out a new pattern of tile, designed especially to prevent drift of 
either snow or rain. These tiles are called " Angular Corru- 
gated " roofing tiles. Each tile overlaps its fellow in the angle, 
and is clamped to the one above, materially assisting their mutual 
security, and fitting closely on to each other with the projection 
behind, an arrangement which would, I imagine, stop any drift. 
The sharp angles of the tile must assist the quick passage of 
rain from the roof. Messrs. Major exhibited very many kinds 
of roofing tiles, but the corrugated patterns recommend them- 
selves. 
Fig. 13. — Messrs. H. J. and C. Major's Angular Cwrugated Boqfing 
Tdcs. 
Messrs. Douglity and Bradley, East Dereham, had some 
original exhibits that are quite a marvel of cheapness ; but 
